 (at the Atari)
 (at the Atari)
UNKNOWN CONNECTOR at the Atari.
| Pin | Name | 
|---|---|
| 1 | D0 | 
| 2 | D1 | 
| 3 | D2 | 
| 4 | D3 | 
| 5 | D4 | 
| 6 | D5 | 
| 7 | D6 | 
| 8 | D7 | 
| 9 | Enable 80-8F | 
| 10 | Enable 40-7F | 
| 11 | Not Connected | 
| 12 | Ground | 
| 13 | Ground | 
| 14 | Ground (System Clock 02 on 2 port) | 
| 15 | A6 | 
| 16 | A5 | 
| 17 | A2 | 
| 18 | Interlock | 
| 19 | A0 | 
| 20 | A1 | 
| 21 | A3 | 
| 22 | A4 | 
| 23 | Ground | 
| 24 | Ground (Video In on 2 port) | 
| 25 | Ground | 
| 26 | +5 VDC | 
| 27 | A7 | 
| 28 | Not Connected | 
| 29 | A8 | 
| 30 | Audio In (2 port) | 
| 31 | A9 | 
| 32 | A13 | 
| 33 | A10 | 
| 34 | A12 | 
| 35 | A11 | 
| 36 | Interlock | 
| Contributor: | Joakim Ögren | 
| Source: | Classic Atari 2600/5200/7800 Game Systems FAQ | 
  Copyright © The Hardware Book Team 1996-2004.
  May be copied and redistributed, partially or in whole, as appropriate.
  Document last modified: 2002-01-10